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Chemical Effects of Electric Current - 2

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Multiple Choice

Mohit took a piece of potato and inserted both ends of a copper wire into it. He connected the wire to a battery. Some change happened after some time in the piece. What is that change?

  1. A coloured spot is formed on the potato on the side of negative terminal.
  2. A coloured spot is formed on the potato on the side of positive terminal.
  3. The whole upper surface of the potato becomes coloured.
  4. The colour of the copper wire changes.
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